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Finding the Fourth Proportional to 8,704.43, 12,007.74 and 5,868.21

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Solution

The fourth proportional to 8,704.43, 12,007.74 and 5,868.21 is: 8,095.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.43 : 12,007.74 = 5,868.21 : x
  2. Step 2: Convert to fraction form
    8,704.43/12,007.74 = 5,868.21/x
  3. Step 3: Cross multiply
    8,704.43x = 12,007.74 × 5,868.21
  4. Step 4: Simplify right side
    8,704.43x = 70,464,006.98
  5. Step 5: Solve for x
    x = 70,464,006.98/8,704.43
  6. Step 6: Final answer
    x = 8,095.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.